[England, February 11: Dickens (right), a horse that has been with the Greater Manchester Police force for 15 years, and Warwick, who has been with the force for four years, on their last day of work before retiring. While most police horses have a working life of eight to 10 years, Dickens has been working for the Greater Manchester Police force for 15 years and Warwick for four years and is retiring due to health. Image via Getty.]